The Online Books Page at U Penn – listing of legally available online booksonlinebooks.library.upenn.edu·9 pts·WillAdams·4
Video game publisher asks important questions –- How to make the world better?msn.com·2 pts·WillAdams·2
FullControl GCODE Designer: an open source Python tool for modeling 3D extrusionfullcontrolgcode.com·1 pts·WillAdams·1
“Omnilingual”, classic science fiction novella which should be part of educationgutenberg.org·4 pts·WillAdams·1